Fibers, flat textile structures, and methods

US6235663A · kind A · utility

Assignee

• Hoechst Trevira GmbH & Co. KG · DE

Inventors

• Jorg Dahringer · Bobingen, DE
• Axel Vischer · Garching bei München, DE

Key dates

• Filing date: Dec 11, 1998
• Grant date: May 22, 2001
• Expiry date: Dec 11, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/607
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Fibers, preferably electret fibers, made of materials which contain predominantly fiber-forming polymer or polycondensate, with a preparation applied onto the fibers, where the applied preparation contains at least one active substance which has volatilized after a time period of 20 minutes at a temperature of at most 250.degree. C., preferably at most 230.degree. C., to at least 80 weight % are disclosed. The active substance is preferably a compound having the general formula (I) EQU R.sub.1 R.sub.2 R.sub.3 NO (I) where R.sub.1 is hydrogen or an unsubstituted or substituted C.sub.1 -C.sub.30 alkyl, alkenyl, or aryl group, and R.sub.2 and R.sub.3, independently of one another, are hydrogen or unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, alkenyl, or aryl groups.